In summer squash, white colour fruit (W) is dominant over yellow colour (w) and disc-shaped phenotype (D) is dominant over sphere-shaped phenotype (d). Determine the genotype of the parents gives 3/8 white, sphere, 3/8 white, Disk, 1/8 Yellow, Disk and 1/8 Yellow, Sphere?

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#Question id: 20000

#SCPH06 I Botany

Example of Cross-reactivity

a) Dominant and recessive gene

b) Autoimmune disease

c) Blood group mismatch

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#Question id: 11957

#I Life Science/ Life Sciences Group – I-V

Because the foods eaten by animals are often composed largely of macromolecules, animals need to have mechanisms for ________.

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#Question id: 13084

#SCPH28 | Zoology

Statement: In a modified version of AFLP, the selection of fragments using biotin-streptavidin binding is avoided.

Explanations: I. The fragments are ligated to the appropriate adapters and used for PCR amplification using two AFLP primers, each primer having a single selection nucleotide; this is called preamplification step.

II. The PCR products from this preamplificated step are diluted and used as template for second PCR amplification.

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#Question id: 422

#SCPH28 | Zoology

The flow of material through a reaction pathway usually depends on ________.

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#Question id: 14700

#SCPH06 I Botany

One mapping is selected at random from all the mappings from the set S = {1,2,3,...n} into itself. The probability that the selected mapping is one to one is